Home / 9,930.64-13,704.21-5,393.41

Finding the Fourth Proportional to 9,930.64, 13,704.21 and 5,393.41

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Solution

The fourth proportional to 9,930.64, 13,704.21 and 5,393.41 is: 7,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.64 : 13,704.21 = 5,393.41 : x
  2. Step 2: Convert to fraction form
    9,930.64/13,704.21 = 5,393.41/x
  3. Step 3: Cross multiply
    9,930.64x = 13,704.21 × 5,393.41
  4. Step 4: Simplify right side
    9,930.64x = 73,912,423.26
  5. Step 5: Solve for x
    x = 73,912,423.26/9,930.64
  6. Step 6: Final answer
    x = 7,442.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.